Home / 12,871,103.72-17,762,429.79-7,070,006.97

Finding the Fourth Proportional to 12,871,103.72, 17,762,429.79 and 7,070,006.97

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Solution

The fourth proportional to 12,871,103.72, 17,762,429.79 and 7,070,006.97 is: 9,756,778.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871,103.72 : 17,762,429.79 = 7,070,006.97 : x
  2. Step 2: Convert to fraction form
    12,871,103.72/17,762,429.79 = 7,070,006.97/x
  3. Step 3: Cross multiply
    12,871,103.72x = 17,762,429.79 × 7,070,006.97
  4. Step 4: Simplify right side
    12,871,103.72x = 125,580,502,419,435.62
  5. Step 5: Solve for x
    x = 125,580,502,419,435.62/12,871,103.72
  6. Step 6: Final answer
    x = 9,756,778.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.